Overview
The Allen-Bradley 92-39 is a standard 3-inch (76mm) round reflector from Bulletin 92, specifically engineered for use with photoelectric sensors in retroreflective sensing applications. The reflector features a corner cube design with an ABS plastic back and center-mount thru-hole configuration, making it ideal for integration into industrial detection systems. This lot includes two units, offering cost savings for multi-sensor installations.
Key Features
- 76mm (3-inch) round diameter—standard size for photoelectric sensor suites
- Corner cube retroreflector design minimizes alignment sensitivity (up to 15° misalignment tolerance)
- Center-mount thru-hole for secure mechanical attachment
- ABS plastic back provides durability and lightweight mounting
- Bulletin 92 form factor compatible with Allen-Bradley photoelectric sensor systems
- Series B design specification
Technical Specifications
- Shape: Round
- Diameter: 76.2 mm (3 inches)
- Reflector Type: Corner Cube
- Mounting Type: Center-mount thru-hole
- Back Material: ABS Plastic
- Width: 0.35 inches
- Operating Temperature: -40°C to 65°C (150°F max)
- Weight per Unit: 0.05 lb (22.7 g)
- Bulletin/Series: Bulletin 92, Series B
- UPC: 662072074770
Typical Applications
The Allen-Bradley 92-39 is used in a wide range of industrial automation and sensing applications, including:
- Proximity and object detection on conveyor systems
- Parts counting and position verification in manufacturing
- Package presence detection at packaging lines
- Level sensing in storage tanks or hoppers
- Machine safety and guard detection
- Automated material handling systems
Compatibility & Replacements
Compatible With
- Allen-Bradley photoelectric sensor families (Series 9000, Series 10000, Series 5000)
- Rockwell Automation photoelectric detection systems
- Retroreflective sensing applications using standard optics
- Industrial automation controllers and safety systems
Replaces / Drop-In Replacement For
- Direct equivalent to earlier 92-39 Series A units
- May substitute for generic 76mm round retroreflectors in Allen-Bradley installations
- Verify compatibility with your photoelectric sensor model before ordering
Works With
- Allen-Bradley photoelectric sensor suites
- Rockwell Automation EtherNet/IP and legacy serial protocols
- Manual and automated detection systems
- Industrial control and safety architectures
















